Thats what I was thinking also. at some point from week 2 to week ?? hgh surpresses/shuts down T3 prodcuction in body, thus a suppliemental dose of 25mcg is recommended. If you are not getting bi-weekly blood tests, then you can somewhat tell from body temp changes, but I am betting you did not get a base line body temp prior to HGH supplimentation.
I also noticed an adrenal gland down regulation, but I believe it is due to longer usage of ephidrine and clen usage.
I take 4 iu's AM with 25 mcg cytomel and 4 iu's PM, and I am not tired during the day. Give it a try or get blood work done.